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hush/libbb/interface.c
Eric Andersen f96675bc50 James Petterson writes: 
I've found a possible bug in libbb/interface.c, in function
if_readlist_proc(). This function calls get_name(), and passes
as an argument 'name', a buffer of 16 bytes (IFNAMSIZ).  The
function get_name(), however, may use more than 16 bytes,
when it is searching for aliases. Even if you don't have an
alias interface, you can run into trouble if the interface
has received more than 99999999 bytes, in which case the
space between the interface name and the rx stats
disappears, as in the /proc/net/dev example below:
 wan0.200:264573315  462080    ...
In this case get_name() correctly identifies the interface name
as "wan0.200", but to do that it uses 18 bytes of the 'name'
buffer, which could lead to an unpredictable error.

A simple solution would be to increase the size of the buffer:
2003-07-28 06:37:04 +00:00

2060 lines
44 KiB
C
Raw Blame History

/*
* stolen from net-tools-1.59 and stripped down for busybox by
* Erik Andersen <andersen@codepoet.org>
*
* Heavily modified by Manuel Novoa III Mar 12, 2001
*
* Pruned unused code using KEEP_UNUSED define.
* Added print_bytes_scaled function to reduce code size.
* Added some (potentially) missing defines.
* Improved display support for -a and for a named interface.
*
* -----------------------------------------------------------
*
* ifconfig This file contains an implementation of the command
* that either displays or sets the characteristics of
* one or more of the system's networking interfaces.
*
* Version: $Id: interface.c,v 1.18 2003/07/28 06:35:32 andersen Exp $
*
* Author: Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
* and others. Copyright 1993 MicroWalt Corporation
*
* This program is free software; you can redistribute it
* and/or modify it under the terms of the GNU General
* Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* Patched to support 'add' and 'del' keywords for INET(4) addresses
* by Mrs. Brisby <mrs.brisby@nimh.org>
*
* {1.34} - 19980630 - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
* - gettext instead of catgets for i18n
* 10/1998 - Andi Kleen. Use interface list primitives.
* 20001008 - Bernd Eckenfels, Patch from RH for setting mtu
* (default AF was wrong)
*/
/* #define KEEP_UNUSED */
/*
*
* Protocol Families.
*
*/
#define HAVE_AFINET 1
#undef HAVE_AFIPX
#undef HAVE_AFATALK
#undef HAVE_AFNETROM
#undef HAVE_AFX25
#undef HAVE_AFECONET
#undef HAVE_AFASH
#ifdef CONFIG_FEATURE_IPV6
# define HAVE_AFINET6 1
#else
# undef HAVE_AFINET6
#endif
/*
*
* Device Hardware types.
*
*/
#define HAVE_HWETHER 1
#define HAVE_HWPPP 1
#undef HAVE_HWSLIP
#include "inet_common.h"
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <ctype.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <net/if.h>
#include <net/if_arp.h>
#include "libbb.h"
#define _(x) x
#define _PATH_PROCNET_DEV "/proc/net/dev"
#define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
#define new(p) ((p) = xcalloc(1,sizeof(*(p))))
#define KRELEASE(maj,min,patch) ((maj) * 65536 + (min)*256 + (patch))
static int procnetdev_vsn = 1;
#ifdef HAVE_HWSLIP
#include <net/if_slip.h>
#endif
#if HAVE_AFINET6
#ifndef _LINUX_IN6_H
/*
* This is in linux/include/net/ipv6.h.
*/
struct in6_ifreq {
struct in6_addr ifr6_addr;
__u32 ifr6_prefixlen;
unsigned int ifr6_ifindex;
};
#endif
#endif /* HAVE_AFINET6 */
#if HAVE_AFIPX
#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
#include <netipx/ipx.h>
#else
#include "ipx.h"
#endif
#endif
/* Defines for glibc2.0 users. */
#ifndef SIOCSIFTXQLEN
#define SIOCSIFTXQLEN 0x8943
#define SIOCGIFTXQLEN 0x8942
#endif
/* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */
#ifndef ifr_qlen
#define ifr_qlen ifr_ifru.ifru_mtu
#endif
#ifndef HAVE_TXQUEUELEN
#define HAVE_TXQUEUELEN 1
#endif
#ifndef IFF_DYNAMIC
#define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */
#endif
/* This structure defines protocol families and their handlers. */
struct aftype {
const char *name;
const char *title;
int af;
int alen;
char *(*print) (unsigned char *);
char *(*sprint) (struct sockaddr *, int numeric);
int (*input) (int type, char *bufp, struct sockaddr *);
void (*herror) (char *text);
int (*rprint) (int options);
int (*rinput) (int typ, int ext, char **argv);
/* may modify src */
int (*getmask) (char *src, struct sockaddr * mask, char *name);
int fd;
char *flag_file;
};
#ifdef KEEP_UNUSED
static int flag_unx;
#ifdef HAVE_AFIPX
static int flag_ipx;
#endif
#ifdef HAVE_AFX25
static int flag_ax25;
#endif
#ifdef HAVE_AFATALK
static int flag_ddp;
#endif
#ifdef HAVE_AFNETROM
static int flag_netrom;
#endif
static int flag_inet;
#ifdef HAVE_AFINET6
static int flag_inet6;
#endif
#ifdef HAVE_AFECONET
static int flag_econet;
#endif
#ifdef HAVE_AFX25
static int flag_x25 = 0;
#endif
#ifdef HAVE_AFASH
static int flag_ash;
#endif
static struct aftrans_t {
char *alias;
char *name;
int *flag;
} aftrans[] = {
#ifdef HAVE_AFX25
{
"ax25", "ax25", &flag_ax25},
#endif
{
"ip", "inet", &flag_inet},
#ifdef HAVE_AFINET6
{
"ip6", "inet6", &flag_inet6},
#endif
#ifdef HAVE_AFIPX
{
"ipx", "ipx", &flag_ipx},
#endif
#ifdef HAVE_AFATALK
{
"appletalk", "ddp", &flag_ddp},
#endif
#ifdef HAVE_AFNETROM
{
"netrom", "netrom", &flag_netrom},
#endif
{
"inet", "inet", &flag_inet},
#ifdef HAVE_AFINET6
{
"inet6", "inet6", &flag_inet6},
#endif
#ifdef HAVE_AFATALK
{
"ddp", "ddp", &flag_ddp},
#endif
{
"unix", "unix", &flag_unx}, {
"tcpip", "inet", &flag_inet},
#ifdef HAVE_AFECONET
{
"econet", "ec", &flag_econet},
#endif
#ifdef HAVE_AFX25
{
"x25", "x25", &flag_x25},
#endif
#ifdef HAVE_AFASH
{
"ash", "ash", &flag_ash},
#endif
{
0, 0, 0}
};
static char afname[256] = "";
#endif /* KEEP_UNUSED */
#if HAVE_AFUNIX
/* Display a UNIX domain address. */
static char *UNIX_print(unsigned char *ptr)
{
return (ptr);
}
/* Display a UNIX domain address. */
static char *UNIX_sprint(struct sockaddr *sap, int numeric)
{
static char buf[64];
if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf));
return (UNIX_print(sap->sa_data));
}
static struct aftype unix_aftype = {
"unix", "UNIX Domain", AF_UNIX, 0,
UNIX_print, UNIX_sprint, NULL, NULL,
NULL, NULL, NULL,
-1,
"/proc/net/unix"
};
#endif /* HAVE_AFUNIX */
#if HAVE_AFINET
#ifdef KEEP_UNUSED
static void INET_reserror(char *text)
{
herror(text);
}
/* Display an Internet socket address. */
static char *INET_print(unsigned char *ptr)
{
return (inet_ntoa((*(struct in_addr *) ptr)));
}
#endif /* KEEP_UNUSED */
/* Display an Internet socket address. */
static char *INET_sprint(struct sockaddr *sap, int numeric)
{
static char buff[128];
if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
numeric, 0xffffff00) != 0)
return (NULL);
return (buff);
}
#ifdef KEEP_UNUSED
static char *INET_sprintmask(struct sockaddr *sap, int numeric,
unsigned int netmask)
{
static char buff[128];
if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
numeric, netmask) != 0)
return (NULL);
return (buff);
}
static int INET_getsock(char *bufp, struct sockaddr *sap)
{
char *sp = bufp, *bp;
unsigned int i;
unsigned val;
struct sockaddr_in *sin;
sin = (struct sockaddr_in *) sap;
sin->sin_family = AF_INET;
sin->sin_port = 0;
val = 0;
bp = (char *) &val;
for (i = 0; i < sizeof(sin->sin_addr.s_addr); i++) {
*sp = toupper(*sp);
if ((*sp >= 'A') && (*sp <= 'F'))
bp[i] |= (int) (*sp - 'A') + 10;
else if ((*sp >= '0') && (*sp <= '9'))
bp[i] |= (int) (*sp - '0');
else
return (-1);
bp[i] <<= 4;
sp++;
*sp = toupper(*sp);
if ((*sp >= 'A') && (*sp <= 'F'))
bp[i] |= (int) (*sp - 'A') + 10;
else if ((*sp >= '0') && (*sp <= '9'))
bp[i] |= (int) (*sp - '0');
else
return (-1);
sp++;
}
sin->sin_addr.s_addr = htonl(val);
return (sp - bufp);
}
static int INET_input(int type, char *bufp, struct sockaddr *sap)
{
switch (type) {
case 1:
return (INET_getsock(bufp, sap));
case 256:
return (INET_resolve(bufp, (struct sockaddr_in *) sap, 1));
default:
return (INET_resolve(bufp, (struct sockaddr_in *) sap, 0));
}
}
static int INET_getnetmask(char *adr, struct sockaddr *m, char *name)
{
struct sockaddr_in *mask = (struct sockaddr_in *) m;
char *slash, *end;
int prefix;
if ((slash = strchr(adr, '/')) == NULL)
return 0;
*slash++ = '\0';
prefix = strtoul(slash, &end, 0);
if (*end != '\0')
return -1;
if (name) {
sprintf(name, "/%d", prefix);
}
mask->sin_family = AF_INET;
mask->sin_addr.s_addr = htonl(~(0xffffffffU >> prefix));
return 1;
}
#endif /* KEEP_UNUSED */
static struct aftype inet_aftype = {
"inet", "DARPA Internet", AF_INET, sizeof(unsigned long),
NULL /* UNUSED INET_print */ , INET_sprint,
NULL /* UNUSED INET_input */ , NULL /* UNUSED INET_reserror */ ,
NULL /*INET_rprint */ , NULL /*INET_rinput */ ,
NULL /* UNUSED INET_getnetmask */ ,
-1,
NULL
};
#endif /* HAVE_AFINET */
#if HAVE_AFINET6
#ifdef KEEP_UNUSED
static void INET6_reserror(char *text)
{
herror(text);
}
/* Display an Internet socket address. */
static char *INET6_print(unsigned char *ptr)
{
static char name[80];
inet_ntop(AF_INET6, (struct in6_addr *) ptr, name, 80);
return name;
}
#endif /* KEEP_UNUSED */
/* Display an Internet socket address. */
/* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */
static char *INET6_sprint(struct sockaddr *sap, int numeric)
{
static char buff[128];
if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
if (INET6_rresolve
(buff, sizeof(buff), (struct sockaddr_in6 *) sap, numeric) != 0)
return safe_strncpy(buff, _("[UNKNOWN]"), sizeof(buff));
return (buff);
}
#ifdef KEEP_UNUSED
static int INET6_getsock(char *bufp, struct sockaddr *sap)
{
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *) sap;
sin6->sin6_family = AF_INET6;
sin6->sin6_port = 0;
if (inet_pton(AF_INET6, bufp, sin6->sin6_addr.s6_addr) <= 0)
return (-1);
return 16; /* ?;) */
}
static int INET6_input(int type, char *bufp, struct sockaddr *sap)
{
switch (type) {
case 1:
return (INET6_getsock(bufp, sap));
default:
return (INET6_resolve(bufp, (struct sockaddr_in6 *) sap));
}
}
#endif /* KEEP_UNUSED */
static struct aftype inet6_aftype = {
"inet6", "IPv6", AF_INET6, sizeof(struct in6_addr),
NULL /* UNUSED INET6_print */ , INET6_sprint,
NULL /* UNUSED INET6_input */ , NULL /* UNUSED INET6_reserror */ ,
NULL /*INET6_rprint */ , NULL /*INET6_rinput */ ,
NULL /* UNUSED INET6_getnetmask */ ,
-1,
NULL
};
#endif /* HAVE_AFINET6 */
/* Display an UNSPEC address. */
static char *UNSPEC_print(unsigned char *ptr)
{
static char buff[sizeof(struct sockaddr) * 3 + 1];
char *pos;
unsigned int i;
pos = buff;
for (i = 0; i < sizeof(struct sockaddr); i++) {
/* careful -- not every libc's sprintf returns # bytes written */
sprintf(pos, "%02X-", (*ptr++ & 0377));
pos += 3;
}
/* Erase trailing "-". Works as long as sizeof(struct sockaddr) != 0 */
*--pos = '\0';
return (buff);
}
/* Display an UNSPEC socket address. */
static char *UNSPEC_sprint(struct sockaddr *sap, int numeric)
{
static char buf[64];
if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf));
return (UNSPEC_print(sap->sa_data));
}
static struct aftype unspec_aftype = {
"unspec", "UNSPEC", AF_UNSPEC, 0,
UNSPEC_print, UNSPEC_sprint, NULL, NULL,
NULL,
};
static struct aftype *aftypes[] = {
#if HAVE_AFUNIX
&unix_aftype,
#endif
#if HAVE_AFINET
&inet_aftype,
#endif
#if HAVE_AFINET6
&inet6_aftype,
#endif
#if HAVE_AFAX25
&ax25_aftype,
#endif
#if HAVE_AFNETROM
&netrom_aftype,
#endif
#if HAVE_AFROSE
&rose_aftype,
#endif
#if HAVE_AFIPX
&ipx_aftype,
#endif
#if HAVE_AFATALK
&ddp_aftype,
#endif
#if HAVE_AFECONET
&ec_aftype,
#endif
#if HAVE_AFASH
&ash_aftype,
#endif
#if HAVE_AFX25
&x25_aftype,
#endif
&unspec_aftype,
NULL
};
#ifdef KEEP_UNUSED
static short sVafinit = 0;
static void afinit()
{
unspec_aftype.title = _("UNSPEC");
#if HAVE_AFUNIX
unix_aftype.title = _("UNIX Domain");
#endif
#if HAVE_AFINET
inet_aftype.title = _("DARPA Internet");
#endif
#if HAVE_AFINET6
inet6_aftype.title = _("IPv6");
#endif
#if HAVE_AFAX25
ax25_aftype.title = _("AMPR AX.25");
#endif
#if HAVE_AFNETROM
netrom_aftype.title = _("AMPR NET/ROM");
#endif
#if HAVE_AFIPX
ipx_aftype.title = _("Novell IPX");
#endif
#if HAVE_AFATALK
ddp_aftype.title = _("Appletalk DDP");
#endif
#if HAVE_AFECONET
ec_aftype.title = _("Econet");
#endif
#if HAVE_AFX25
x25_aftype.title = _("CCITT X.25");
#endif
#if HAVE_AFROSE
rose_aftype.title = _("AMPR ROSE");
#endif
#if HAVE_AFASH
ash_aftype.title = _("Ash");
#endif
sVafinit = 1;
}
static int aftrans_opt(const char *arg)
{
struct aftrans_t *paft;
char *tmp1, *tmp2;
char buf[256];
safe_strncpy(buf, arg, sizeof(buf));
tmp1 = buf;
while (tmp1) {
tmp2 = strchr(tmp1, ',');
if (tmp2)
*(tmp2++) = '\0';
paft = aftrans;
for (paft = aftrans; paft->alias; paft++) {
if (strcmp(tmp1, paft->alias))
continue;
if (strlen(paft->name) + strlen(afname) + 1 >= sizeof(afname)) {
bb_error_msg(_("Too many address family arguments."));
return (0);
}
if (paft->flag)
(*paft->flag)++;
if (afname[0])
strcat(afname, ",");
strcat(afname, paft->name);
break;
}
if (!paft->alias) {
bb_error_msg(_("Unknown address family `%s'."), tmp1);
return (1);
}
tmp1 = tmp2;
}
return (0);
}
/* set the default AF list from the program name or a constant value */
static void aftrans_def(char *tool, char *argv0, char *dflt)
{
char *tmp;
char *buf;
strcpy(afname, dflt);
if (!(tmp = strrchr(argv0, '/')))
tmp = argv0; /* no slash?! */
else
tmp++;
if (!(buf = strdup(tmp)))
return;
if (strlen(tool) >= strlen(tmp)) {
free(buf);
return;
}
tmp = buf + (strlen(tmp) - strlen(tool));
if (strcmp(tmp, tool) != 0) {
free(buf);
return;
}
*tmp = '\0';
if ((tmp = strchr(buf, '_')))
*tmp = '\0';
afname[0] = '\0';
if (aftrans_opt(buf))
strcpy(afname, buf);
free(buf);
}
/* Check our protocol family table for this family. */
static struct aftype *get_aftype(const char *name)
{
struct aftype **afp;
#ifdef KEEP_UNUSED
if (!sVafinit)
afinit();
#endif /* KEEP_UNUSED */
afp = aftypes;
while (*afp != NULL) {
if (!strcmp((*afp)->name, name))
return (*afp);
afp++;
}
if (strchr(name, ','))
bb_error_msg(_("Please don't supply more than one address family."));
return (NULL);
}
#endif /* KEEP_UNUSED */
/* Check our protocol family table for this family. */
static struct aftype *get_afntype(int af)
{
struct aftype **afp;
#ifdef KEEP_UNUSED
if (!sVafinit)
afinit();
#endif /* KEEP_UNUSED */
afp = aftypes;
while (*afp != NULL) {
if ((*afp)->af == af)
return (*afp);
afp++;
}
return (NULL);
}
/* Check our protocol family table for this family and return its socket */
static int get_socket_for_af(int af)
{
struct aftype **afp;
#ifdef KEEP_UNUSED
if (!sVafinit)
afinit();
#endif /* KEEP_UNUSED */
afp = aftypes;
while (*afp != NULL) {
if ((*afp)->af == af)
return (*afp)->fd;
afp++;
}
return -1;
}
#ifdef KEEP_UNUSED
/* type: 0=all, 1=getroute */
static void print_aflist(int type)
{
int count = 0;
char *txt;
struct aftype **afp;
#ifdef KEEP_UNUSED
if (!sVafinit)
afinit();
#endif /* KEEP_UNUSED */
afp = aftypes;
while (*afp != NULL) {
if ((type == 1 && ((*afp)->rprint == NULL)) || ((*afp)->af == 0)) {
afp++;
continue;
}
if ((count % 3) == 0)
fprintf(stderr, count ? "\n " : " ");
txt = (*afp)->name;
if (!txt)
txt = "..";
fprintf(stderr, "%s (%s) ", txt, _((*afp)->title));
count++;
afp++;
}
fprintf(stderr, "\n");
}
#endif /* KEEP_UNUSED */
struct user_net_device_stats {
unsigned long long rx_packets; /* total packets received */
unsigned long long tx_packets; /* total packets transmitted */
unsigned long long rx_bytes; /* total bytes received */
unsigned long long tx_bytes; /* total bytes transmitted */
unsigned long rx_errors; /* bad packets received */
unsigned long tx_errors; /* packet transmit problems */
unsigned long rx_dropped; /* no space in linux buffers */
unsigned long tx_dropped; /* no space available in linux */
unsigned long rx_multicast; /* multicast packets received */
unsigned long rx_compressed;
unsigned long tx_compressed;
unsigned long collisions;
/* detailed rx_errors: */
unsigned long rx_length_errors;
unsigned long rx_over_errors; /* receiver ring buff overflow */
unsigned long rx_crc_errors; /* recved pkt with crc error */
unsigned long rx_frame_errors; /* recv'd frame alignment error */
unsigned long rx_fifo_errors; /* recv'r fifo overrun */
unsigned long rx_missed_errors; /* receiver missed packet */
/* detailed tx_errors */
unsigned long tx_aborted_errors;
unsigned long tx_carrier_errors;
unsigned long tx_fifo_errors;
unsigned long tx_heartbeat_errors;
unsigned long tx_window_errors;
};
struct interface {
struct interface *next, *prev;
char name[IFNAMSIZ]; /* interface name */
short type; /* if type */
short flags; /* various flags */
int metric; /* routing metric */
int mtu; /* MTU value */
int tx_queue_len; /* transmit queue length */
struct ifmap map; /* hardware setup */
struct sockaddr addr; /* IP address */
struct sockaddr dstaddr; /* P-P IP address */
struct sockaddr broadaddr; /* IP broadcast address */
struct sockaddr netmask; /* IP network mask */
struct sockaddr ipxaddr_bb; /* IPX network address */
struct sockaddr ipxaddr_sn; /* IPX network address */
struct sockaddr ipxaddr_e3; /* IPX network address */
struct sockaddr ipxaddr_e2; /* IPX network address */
struct sockaddr ddpaddr; /* Appletalk DDP address */
struct sockaddr ecaddr; /* Econet address */
int has_ip;
int has_ipx_bb;
int has_ipx_sn;
int has_ipx_e3;
int has_ipx_e2;
int has_ax25;
int has_ddp;
int has_econet;
char hwaddr[32]; /* HW address */
int statistics_valid;
struct user_net_device_stats stats; /* statistics */
int keepalive; /* keepalive value for SLIP */
int outfill; /* outfill value for SLIP */
};
int interface_opt_a = 0; /* show all interfaces */
#ifdef KEEP_UNUSED
static int opt_i = 0; /* show the statistics */
static int opt_v = 0; /* debugging output flag */
static int addr_family = 0; /* currently selected AF */
#endif /* KEEP_UNUSED */
static struct interface *int_list, *int_last;
static int skfd = -1; /* generic raw socket desc. */
static int sockets_open(int family)
{
struct aftype **aft;
int sfd = -1;
static int force = -1;
if (force < 0) {
force = 0;
if (get_kernel_revision() < KRELEASE(2, 1, 0))
force = 1;
if (access("/proc/net", R_OK))
force = 1;
}
for (aft = aftypes; *aft; aft++) {
struct aftype *af = *aft;
int type = SOCK_DGRAM;
if (af->af == AF_UNSPEC)
continue;
if (family && family != af->af)
continue;
if (af->fd != -1) {
sfd = af->fd;
continue;
}
/* Check some /proc file first to not stress kmod */
if (!family && !force && af->flag_file) {
if (access(af->flag_file, R_OK))
continue;
}
#if HAVE_AFNETROM
if (af->af == AF_NETROM)
type = SOCK_SEQPACKET;
#endif
#if HAVE_AFX25
if (af->af == AF_X25)
type = SOCK_SEQPACKET;
#endif
af->fd = socket(af->af, type, 0);
if (af->fd >= 0)
sfd = af->fd;
}
if (sfd < 0) {
bb_error_msg(_("No usable address families found."));
}
return sfd;
}
/* like strcmp(), but knows about numbers */
static int nstrcmp(const char *astr, const char *b)
{
const char *a = astr;
while (*a == *b) {
if (*a == '\0')
return 0;
a++;
b++;
}
if (isdigit(*a)) {
if (!isdigit(*b))
return -1;
while (a > astr) {
a--;
if (!isdigit(*a)) {
a++;
break;
}
if (!isdigit(*b))
return -1;
b--;
}
return atoi(a) > atoi(b) ? 1 : -1;
}
return *a - *b;
}
static struct interface *add_interface(char *name)
{
struct interface *ife, **nextp, *new;
for (ife = int_last; ife; ife = ife->prev) {
int n = nstrcmp(ife->name, name);
if (n == 0)
return ife;
if (n < 0)
break;
}
new(new);
safe_strncpy(new->name, name, IFNAMSIZ);
nextp = ife ? &ife->next : &int_list;
new->prev = ife;
new->next = *nextp;
if (new->next)
new->next->prev = new;
else
int_last = new;
*nextp = new;
return new;
}
static int if_readconf(void)
{
int numreqs = 30;
struct ifconf ifc;
struct ifreq *ifr;
int n, err = -1;
int skfd2;
/* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
(as of 2.1.128) */
skfd2 = get_socket_for_af(AF_INET);
if (skfd2 < 0) {
bb_perror_msg(("warning: no inet socket available"));
/* Try to soldier on with whatever socket we can get hold of. */
skfd2 = sockets_open(0);
if (skfd2 < 0)
return -1;
}
ifc.ifc_buf = NULL;
for (;;) {
ifc.ifc_len = sizeof(struct ifreq) * numreqs;
ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
if (ioctl(skfd2, SIOCGIFCONF, &ifc) < 0) {
perror("SIOCGIFCONF");
goto out;
}
if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) {
/* assume it overflowed and try again */
numreqs += 10;
continue;
}
break;
}
ifr = ifc.ifc_req;
for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
add_interface(ifr->ifr_name);
ifr++;
}
err = 0;
out:
free(ifc.ifc_buf);
return err;
}
static char *get_name(char *name, char *p)
{
while (isspace(*p))
p++;
while (*p) {
if (isspace(*p))
break;
if (*p == ':') { /* could be an alias */
char *dot = p, *dotname = name;
*name++ = *p++;
while (isdigit(*p))
*name++ = *p++;
if (*p != ':') { /* it wasn't, backup */
p = dot;
name = dotname;
}
if (*p == '\0')
return NULL;
p++;
break;
}
*name++ = *p++;
}
*name++ = '\0';
return p;
}
static int get_dev_fields(char *bp, struct interface *ife)
{
switch (procnetdev_vsn) {
case 3:
sscanf(bp,
"%Lu %Lu %lu %lu %lu %lu %lu %lu %Lu %Lu %lu %lu %lu %lu %lu %lu",
&ife->stats.rx_bytes,
&ife->stats.rx_packets,
&ife->stats.rx_errors,
&ife->stats.rx_dropped,
&ife->stats.rx_fifo_errors,
&ife->stats.rx_frame_errors,
&ife->stats.rx_compressed,
&ife->stats.rx_multicast,
&ife->stats.tx_bytes,
&ife->stats.tx_packets,
&ife->stats.tx_errors,
&ife->stats.tx_dropped,
&ife->stats.tx_fifo_errors,
&ife->stats.collisions,
&ife->stats.tx_carrier_errors, &ife->stats.tx_compressed);
break;
case 2:
sscanf(bp, "%Lu %Lu %lu %lu %lu %lu %Lu %Lu %lu %lu %lu %lu %lu",
&ife->stats.rx_bytes,
&ife->stats.rx_packets,
&ife->stats.rx_errors,
&ife->stats.rx_dropped,
&ife->stats.rx_fifo_errors,
&ife->stats.rx_frame_errors,
&ife->stats.tx_bytes,
&ife->stats.tx_packets,
&ife->stats.tx_errors,
&ife->stats.tx_dropped,
&ife->stats.tx_fifo_errors,
&ife->stats.collisions, &ife->stats.tx_carrier_errors);
ife->stats.rx_multicast = 0;
break;
case 1:
sscanf(bp, "%Lu %lu %lu %lu %lu %Lu %lu %lu %lu %lu %lu",
&ife->stats.rx_packets,
&ife->stats.rx_errors,
&ife->stats.rx_dropped,
&ife->stats.rx_fifo_errors,
&ife->stats.rx_frame_errors,
&ife->stats.tx_packets,
&ife->stats.tx_errors,
&ife->stats.tx_dropped,
&ife->stats.tx_fifo_errors,
&ife->stats.collisions, &ife->stats.tx_carrier_errors);
ife->stats.rx_bytes = 0;
ife->stats.tx_bytes = 0;
ife->stats.rx_multicast = 0;
break;
}
return 0;
}
static inline int procnetdev_version(char *buf)
{
if (strstr(buf, "compressed"))
return 3;
if (strstr(buf, "bytes"))
return 2;
return 1;
}
static int if_readlist_proc(char *target)
{
static int proc_read;
FILE *fh;
char buf[512];
struct interface *ife;
int err;
if (proc_read)
return 0;
if (!target)
proc_read = 1;
fh = fopen(_PATH_PROCNET_DEV, "r");
if (!fh) {
bb_perror_msg(_("Warning: cannot open %s. Limited output."), _PATH_PROCNET_DEV);
return if_readconf();
}
fgets(buf, sizeof buf, fh); /* eat line */
fgets(buf, sizeof buf, fh);
#if 0 /* pretty, but can't cope with missing fields */
fmt = proc_gen_fmt(_PATH_PROCNET_DEV, 1, fh, "face", "", /* parsed separately */
"bytes", "%lu",
"packets", "%lu",
"errs", "%lu",
"drop", "%lu",
"fifo", "%lu",
"frame", "%lu",
"compressed", "%lu",
"multicast", "%lu",
"bytes", "%lu",
"packets", "%lu",
"errs", "%lu",
"drop", "%lu",
"fifo", "%lu",
"colls", "%lu",
"carrier", "%lu", "compressed", "%lu", NULL);
if (!fmt)
return -1;
#else
procnetdev_vsn = procnetdev_version(buf);
#endif
err = 0;
while (fgets(buf, sizeof buf, fh)) {
char *s, name[128];
s = get_name(name, buf);
ife = add_interface(name);
get_dev_fields(s, ife);
ife->statistics_valid = 1;
if (target && !strcmp(target, name))
break;
}
if (ferror(fh)) {
perror(_PATH_PROCNET_DEV);
err = -1;
proc_read = 0;
}
#if 0
free(fmt);
#endif
fclose(fh);
return err;
}
static int if_readlist(void)
{
int err = if_readlist_proc(NULL);
if (!err)
err = if_readconf();
return err;
}
static int for_all_interfaces(int (*doit) (struct interface *, void *),
void *cookie)
{
struct interface *ife;
if (!int_list && (if_readlist() < 0))
return -1;
for (ife = int_list; ife; ife = ife->next) {
int err = doit(ife, cookie);
if (err)
return err;
}
return 0;
}
/* Support for fetching an IPX address */
#if HAVE_AFIPX
static int ipx_getaddr(int sock, int ft, struct ifreq *ifr)
{
((struct sockaddr_ipx *) &ifr->ifr_addr)->sipx_type = ft;
return ioctl(sock, SIOCGIFADDR, ifr);
}
#endif
/* Fetch the interface configuration from the kernel. */
static int if_fetch(struct interface *ife)
{
struct ifreq ifr;
int fd;
char *ifname = ife->name;
strcpy(ifr.ifr_name, ifname);
if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0)
return (-1);
ife->flags = ifr.ifr_flags;
strcpy(ifr.ifr_name, ifname);
if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0)
memset(ife->hwaddr, 0, 32);
else
memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
ife->type = ifr.ifr_hwaddr.sa_family;
strcpy(ifr.ifr_name, ifname);
if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0)
ife->metric = 0;
else
ife->metric = ifr.ifr_metric;
strcpy(ifr.ifr_name, ifname);
if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
ife->mtu = 0;
else
ife->mtu = ifr.ifr_mtu;
#ifdef HAVE_HWSLIP
if (ife->type == ARPHRD_SLIP || ife->type == ARPHRD_CSLIP ||
ife->type == ARPHRD_SLIP6 || ife->type == ARPHRD_CSLIP6 ||
ife->type == ARPHRD_ADAPT) {
#ifdef SIOCGOUTFILL
strcpy(ifr.ifr_name, ifname);
if (ioctl(skfd, SIOCGOUTFILL, &ifr) < 0)
ife->outfill = 0;
else
ife->outfill = (unsigned int) ifr.ifr_data;
#endif
#ifdef SIOCGKEEPALIVE
strcpy(ifr.ifr_name, ifname);
if (ioctl(skfd, SIOCGKEEPALIVE, &ifr) < 0)
ife->keepalive = 0;
else
ife->keepalive = (unsigned int) ifr.ifr_data;
#endif
}
#endif
strcpy(ifr.ifr_name, ifname);
if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0)
memset(&ife->map, 0, sizeof(struct ifmap));
else
memcpy(&ife->map, &ifr.ifr_map, sizeof(struct ifmap));
strcpy(ifr.ifr_name, ifname);
if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0)
memset(&ife->map, 0, sizeof(struct ifmap));
else
ife->map = ifr.ifr_map;
#ifdef HAVE_TXQUEUELEN
strcpy(ifr.ifr_name, ifname);
if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) < 0)
ife->tx_queue_len = -1; /* unknown value */
else
ife->tx_queue_len = ifr.ifr_qlen;
#else
ife->tx_queue_len = -1; /* unknown value */
#endif
#if HAVE_AFINET
/* IPv4 address? */
fd = get_socket_for_af(AF_INET);
if (fd >= 0) {
strcpy(ifr.ifr_name, ifname);
ifr.ifr_addr.sa_family = AF_INET;
if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
ife->has_ip = 1;
ife->addr = ifr.ifr_addr;
strcpy(ifr.ifr_name, ifname);
if (ioctl(fd, SIOCGIFDSTADDR, &ifr) < 0)
memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
else
ife->dstaddr = ifr.ifr_dstaddr;
strcpy(ifr.ifr_name, ifname);
if (ioctl(fd, SIOCGIFBRDADDR, &ifr) < 0)
memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
else
ife->broadaddr = ifr.ifr_broadaddr;
strcpy(ifr.ifr_name, ifname);
if (ioctl(fd, SIOCGIFNETMASK, &ifr) < 0)
memset(&ife->netmask, 0, sizeof(struct sockaddr));
else
ife->netmask = ifr.ifr_netmask;
} else
memset(&ife->addr, 0, sizeof(struct sockaddr));
}
#endif
#if HAVE_AFATALK
/* DDP address maybe ? */
fd = get_socket_for_af(AF_APPLETALK);
if (fd >= 0) {
strcpy(ifr.ifr_name, ifname);
if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
ife->ddpaddr = ifr.ifr_addr;
ife->has_ddp = 1;
}
}
#endif
#if HAVE_AFIPX
/* Look for IPX addresses with all framing types */
fd = get_socket_for_af(AF_IPX);
if (fd >= 0) {
strcpy(ifr.ifr_name, ifname);
if (!ipx_getaddr(fd, IPX_FRAME_ETHERII, &ifr)) {
ife->has_ipx_bb = 1;
ife->ipxaddr_bb = ifr.ifr_addr;
}
strcpy(ifr.ifr_name, ifname);
if (!ipx_getaddr(fd, IPX_FRAME_SNAP, &ifr)) {
ife->has_ipx_sn = 1;
ife->ipxaddr_sn = ifr.ifr_addr;
}
strcpy(ifr.ifr_name, ifname);
if (!ipx_getaddr(fd, IPX_FRAME_8023, &ifr)) {
ife->has_ipx_e3 = 1;
ife->ipxaddr_e3 = ifr.ifr_addr;
}
strcpy(ifr.ifr_name, ifname);
if (!ipx_getaddr(fd, IPX_FRAME_8022, &ifr)) {
ife->has_ipx_e2 = 1;
ife->ipxaddr_e2 = ifr.ifr_addr;
}
}
#endif
#if HAVE_AFECONET
/* Econet address maybe? */
fd = get_socket_for_af(AF_ECONET);
if (fd >= 0) {
strcpy(ifr.ifr_name, ifname);
if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
ife->ecaddr = ifr.ifr_addr;
ife->has_econet = 1;
}
}
#endif
return 0;
}
static int do_if_fetch(struct interface *ife)
{
if (if_fetch(ife) < 0) {
char *errmsg;
if (errno == ENODEV) {
/* Give better error message for this case. */
errmsg = _("Device not found");
} else {
errmsg = strerror(errno);
}
bb_error_msg(_("%s: error fetching interface information: %s\n"),
ife->name, errmsg);
return -1;
}
return 0;
}
/* This structure defines hardware protocols and their handlers. */
struct hwtype {
const char *name;
const char *title;
int type;
int alen;
char *(*print) (unsigned char *);
int (*input) (char *, struct sockaddr *);
int (*activate) (int fd);
int suppress_null_addr;
};
static struct hwtype unspec_hwtype = {
"unspec", "UNSPEC", -1, 0,
UNSPEC_print, NULL, NULL
};
static struct hwtype loop_hwtype = {
"loop", "Local Loopback", ARPHRD_LOOPBACK, 0,
NULL, NULL, NULL
};
#if HAVE_HWETHER
#include <net/if_arp.h>
#if __GLIBC__ >=2 && __GLIBC_MINOR >= 1
#include <net/ethernet.h>
#else
#include <linux/if_ether.h>
#endif
/* Display an Ethernet address in readable format. */
static char *pr_ether(unsigned char *ptr)
{
static char buff[64];
snprintf(buff, sizeof(buff), "%02X:%02X:%02X:%02X:%02X:%02X",
(ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377),
(ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377)
);
return (buff);
}
#ifdef KEEP_UNUSED
/* Input an Ethernet address and convert to binary. */
static int in_ether(char *bufp, struct sockaddr *sap)
{
unsigned char *ptr;
char c, *orig;
int i;
unsigned val;
sap->sa_family = ether_hwtype.type;
ptr = sap->sa_data;
i = 0;
orig = bufp;
while ((*bufp != '\0') && (i < ETH_ALEN)) {
val = 0;
c = *bufp++;
if (isdigit(c))
val = c - '0';
else if (c >= 'a' && c <= 'f')
val = c - 'a' + 10;
else if (c >= 'A' && c <= 'F')
val = c - 'A' + 10;
else {
#ifdef DEBUG
bb_error_msg(_("in_ether(%s): invalid ether address!\n"), orig);
#endif
errno = EINVAL;
return (-1);
}
val <<= 4;
c = *bufp;
if (isdigit(c))
val |= c - '0';
else if (c >= 'a' && c <= 'f')
val |= c - 'a' + 10;
else if (c >= 'A' && c <= 'F')
val |= c - 'A' + 10;
else if (c == ':' || c == 0)
val >>= 4;
else {
#ifdef DEBUG
bb_error_msg(_("in_ether(%s): invalid ether address!"), orig);
#endif
errno = EINVAL;
return (-1);
}
if (c != 0)
bufp++;
*ptr++ = (unsigned char) (val & 0377);
i++;
/* We might get a semicolon here - not required. */
if (*bufp == ':') {
#ifdef DEBUG
if (i == ETH_ALEN) {
bb_error_msg(_("in_ether(%s): trailing : ignored!"), orig);
}
#endif
bufp++;
}
}
#ifdef DEBUG
/* That's it. Any trailing junk? */
if ((i == ETH_ALEN) && (*bufp != '\0')) {
bb_error_msg(_("in_ether(%s): trailing junk!"), orig);
errno = EINVAL;
return (-1);
}
bb_error_msg("in_ether(%s): %s", orig, pr_ether(sap->sa_data));
#endif
return (0);
}
#endif /* KEEP_UNUSED */
static struct hwtype ether_hwtype = {
"ether", "Ethernet", ARPHRD_ETHER, ETH_ALEN,
pr_ether, NULL /* UNUSED in_ether */ , NULL
};
#endif /* HAVE_HWETHER */
#if HAVE_HWPPP
#include <net/if_arp.h>
#ifdef KEEP_UNUSED
/* Start the PPP encapsulation on the file descriptor. */
static int do_ppp(int fd)
{
bb_error_msg(_("You cannot start PPP with this program."));
return -1;
}
#endif /* KEEP_UNUSED */
static struct hwtype ppp_hwtype = {
"ppp", "Point-Point Protocol", ARPHRD_PPP, 0,
NULL, NULL, NULL /* UNUSED do_ppp */ , 0
};
#endif /* HAVE_PPP */
static struct hwtype *hwtypes[] = {
&loop_hwtype,
#if HAVE_HWSLIP
&slip_hwtype,
&cslip_hwtype,
&slip6_hwtype,
&cslip6_hwtype,
&adaptive_hwtype,
#endif
#if HAVE_HWSTRIP
&strip_hwtype,
#endif
#if HAVE_HWASH
&ash_hwtype,
#endif
#if HAVE_HWETHER
&ether_hwtype,
#endif
#if HAVE_HWTR
&tr_hwtype,
#ifdef ARPHRD_IEEE802_TR
&tr_hwtype1,
#endif
#endif
#if HAVE_HWAX25
&ax25_hwtype,
#endif
#if HAVE_HWNETROM
&netrom_hwtype,
#endif
#if HAVE_HWROSE
&rose_hwtype,
#endif
#if HAVE_HWTUNNEL
&tunnel_hwtype,
#endif
#if HAVE_HWPPP
&ppp_hwtype,
#endif
#if HAVE_HWHDLCLAPB
&hdlc_hwtype,
&lapb_hwtype,
#endif
#if HAVE_HWARC
&arcnet_hwtype,
#endif
#if HAVE_HWFR
&dlci_hwtype,
&frad_hwtype,
#endif
#if HAVE_HWSIT
&sit_hwtype,
#endif
#if HAVE_HWFDDI
&fddi_hwtype,
#endif
#if HAVE_HWHIPPI
&hippi_hwtype,
#endif
#if HAVE_HWIRDA
&irda_hwtype,
#endif
#if HAVE_HWEC
&ec_hwtype,
#endif
#if HAVE_HWX25
&x25_hwtype,
#endif
&unspec_hwtype,
NULL
};
#ifdef KEEP_UNUSED
static short sVhwinit = 0;
static void hwinit()
{
loop_hwtype.title = _("Local Loopback");
unspec_hwtype.title = _("UNSPEC");
#if HAVE_HWSLIP
slip_hwtype.title = _("Serial Line IP");
cslip_hwtype.title = _("VJ Serial Line IP");
slip6_hwtype.title = _("6-bit Serial Line IP");
cslip6_hwtype.title = _("VJ 6-bit Serial Line IP");
adaptive_hwtype.title = _("Adaptive Serial Line IP");
#endif
#if HAVE_HWETHER
ether_hwtype.title = _("Ethernet");
#endif
#if HAVE_HWASH
ash_hwtype.title = _("Ash");
#endif
#if HAVE_HWFDDI
fddi_hwtype.title = _("Fiber Distributed Data Interface");
#endif
#if HAVE_HWHIPPI
hippi_hwtype.title = _("HIPPI");
#endif
#if HAVE_HWAX25
ax25_hwtype.title = _("AMPR AX.25");
#endif
#if HAVE_HWROSE
rose_hwtype.title = _("AMPR ROSE");
#endif
#if HAVE_HWNETROM
netrom_hwtype.title = _("AMPR NET/ROM");
#endif
#if HAVE_HWX25
x25_hwtype.title = _("generic X.25");
#endif
#if HAVE_HWTUNNEL
tunnel_hwtype.title = _("IPIP Tunnel");
#endif
#if HAVE_HWPPP
ppp_hwtype.title = _("Point-to-Point Protocol");
#endif
#if HAVE_HWHDLCLAPB
hdlc_hwtype.title = _("(Cisco)-HDLC");
lapb_hwtype.title = _("LAPB");
#endif
#if HAVE_HWARC
arcnet_hwtype.title = _("ARCnet");
#endif
#if HAVE_HWFR
dlci_hwtype.title = _("Frame Relay DLCI");
frad_hwtype.title = _("Frame Relay Access Device");
#endif
#if HAVE_HWSIT
sit_hwtype.title = _("IPv6-in-IPv4");
#endif
#if HAVE_HWIRDA
irda_hwtype.title = _("IrLAP");
#endif
#if HAVE_HWTR
tr_hwtype.title = _("16/4 Mbps Token Ring");
#ifdef ARPHRD_IEEE802_TR
tr_hwtype1.title = _("16/4 Mbps Token Ring (New)");
#endif
#endif
#if HAVE_HWEC
ec_hwtype.title = _("Econet");
#endif
sVhwinit = 1;
}
#endif /* KEEP_UNUSED */
#ifdef IFF_PORTSEL
static const char *if_port_text[][4] = {
/* Keep in step with <linux/netdevice.h> */
{"unknown", NULL, NULL, NULL},
{"10base2", "bnc", "coax", NULL},
{"10baseT", "utp", "tpe", NULL},
{"AUI", "thick", "db15", NULL},
{"100baseT", NULL, NULL, NULL},
{"100baseTX", NULL, NULL, NULL},
{"100baseFX", NULL, NULL, NULL},
{NULL, NULL, NULL, NULL},
};
#endif
/* Check our hardware type table for this type. */
static struct hwtype *get_hwntype(int type)
{
struct hwtype **hwp;
#ifdef KEEP_UNUSED
if (!sVhwinit)
hwinit();
#endif /* KEEP_UNUSED */
hwp = hwtypes;
while (*hwp != NULL) {
if ((*hwp)->type == type)
return (*hwp);
hwp++;
}
return (NULL);
}
/* return 1 if address is all zeros */
static int hw_null_address(struct hwtype *hw, void *ap)
{
unsigned int i;
unsigned char *address = (unsigned char *) ap;
for (i = 0; i < hw->alen; i++)
if (address[i])
return 0;
return 1;
}
static const char TRext[] = "\0\0k\0M";
static void print_bytes_scaled(unsigned long long ull, const char *end)
{
unsigned long long int_part;
unsigned long frac_part;
const char *ext;
int i;
frac_part = 0;
ext = TRext;
int_part = ull;
for (i = 0; i < 2; i++) {
if (int_part >= 1024) {
frac_part = ((int_part % 1024) * 10) / 1024;
int_part /= 1024;
ext += 2; /* Kb, Mb */
}
}
printf("X bytes:%Lu (%Lu.%lu %siB)%s", ull, int_part, frac_part, ext, end);
}
static void ife_print(struct interface *ptr)
{
struct aftype *ap;
struct hwtype *hw;
int hf;
int can_compress = 0;
#if HAVE_AFIPX
static struct aftype *ipxtype = NULL;
#endif
#if HAVE_AFECONET
static struct aftype *ectype = NULL;
#endif
#if HAVE_AFATALK
static struct aftype *ddptype = NULL;
#endif
#if HAVE_AFINET6
FILE *f;
char addr6[40], devname[20];
struct sockaddr_in6 sap;
int plen, scope, dad_status, if_idx;
char addr6p[8][5];
#endif
ap = get_afntype(ptr->addr.sa_family);
if (ap == NULL)
ap = get_afntype(0);
hf = ptr->type;
if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6)
can_compress = 1;
hw = get_hwntype(hf);
if (hw == NULL)
hw = get_hwntype(-1);
printf(_("%-9.9s Link encap:%s "), ptr->name, _(hw->title));
/* For some hardware types (eg Ash, ATM) we don't print the
hardware address if it's null. */
if (hw->print != NULL && (!(hw_null_address(hw, ptr->hwaddr) &&
hw->suppress_null_addr)))
printf(_("HWaddr %s "), hw->print(ptr->hwaddr));
#ifdef IFF_PORTSEL
if (ptr->flags & IFF_PORTSEL) {
printf(_("Media:%s"), if_port_text[ptr->map.port][0]);
if (ptr->flags & IFF_AUTOMEDIA)
printf(_("(auto)"));
}
#endif
printf("\n");
#if HAVE_AFINET
if (ptr->has_ip) {
printf(_(" %s addr:%s "), ap->name,
ap->sprint(&ptr->addr, 1));
if (ptr->flags & IFF_POINTOPOINT) {
printf(_(" P-t-P:%s "), ap->sprint(&ptr->dstaddr, 1));
}
if (ptr->flags & IFF_BROADCAST) {
printf(_(" Bcast:%s "), ap->sprint(&ptr->broadaddr, 1));
}
printf(_(" Mask:%s\n"), ap->sprint(&ptr->netmask, 1));
}
#endif
#if HAVE_AFINET6
#define IPV6_ADDR_ANY 0x0000U
#define IPV6_ADDR_UNICAST 0x0001U
#define IPV6_ADDR_MULTICAST 0x0002U
#define IPV6_ADDR_ANYCAST 0x0004U
#define IPV6_ADDR_LOOPBACK 0x0010U
#define IPV6_ADDR_LINKLOCAL 0x0020U
#define IPV6_ADDR_SITELOCAL 0x0040U
#define IPV6_ADDR_COMPATv4 0x0080U
#define IPV6_ADDR_SCOPE_MASK 0x00f0U
#define IPV6_ADDR_MAPPED 0x1000U
#define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */
if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) {
while (fscanf
(f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n",
addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4],
addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope,
&dad_status, devname) != EOF) {
if (!strcmp(devname, ptr->name)) {
sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
addr6p[0], addr6p[1], addr6p[2], addr6p[3],
addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
inet_pton(AF_INET6, addr6,
(struct sockaddr *) &sap.sin6_addr);
sap.sin6_family = AF_INET6;
printf(_(" inet6 addr: %s/%d"),
inet6_aftype.sprint((struct sockaddr *) &sap, 1),
plen);
printf(_(" Scope:"));
switch (scope & IPV6_ADDR_SCOPE_MASK) {
case 0:
printf(_("Global"));
break;
case IPV6_ADDR_LINKLOCAL:
printf(_("Link"));
break;
case IPV6_ADDR_SITELOCAL:
printf(_("Site"));
break;
case IPV6_ADDR_COMPATv4:
printf(_("Compat"));
break;
case IPV6_ADDR_LOOPBACK:
printf(_("Host"));
break;
default:
printf(_("Unknown"));
}
printf("\n");
}
}
fclose(f);
}
#endif
#if HAVE_AFIPX
if (ipxtype == NULL)
ipxtype = get_afntype(AF_IPX);
if (ipxtype != NULL) {
if (ptr->has_ipx_bb)
printf(_(" IPX/Ethernet II addr:%s\n"),
ipxtype->sprint(&ptr->ipxaddr_bb, 1));
if (ptr->has_ipx_sn)
printf(_(" IPX/Ethernet SNAP addr:%s\n"),
ipxtype->sprint(&ptr->ipxaddr_sn, 1));
if (ptr->has_ipx_e2)
printf(_(" IPX/Ethernet 802.2 addr:%s\n"),
ipxtype->sprint(&ptr->ipxaddr_e2, 1));
if (ptr->has_ipx_e3)
printf(_(" IPX/Ethernet 802.3 addr:%s\n"),
ipxtype->sprint(&ptr->ipxaddr_e3, 1));
}
#endif
#if HAVE_AFATALK
if (ddptype == NULL)
ddptype = get_afntype(AF_APPLETALK);
if (ddptype != NULL) {
if (ptr->has_ddp)
printf(_(" EtherTalk Phase 2 addr:%s\n"),
ddptype->sprint(&ptr->ddpaddr, 1));
}
#endif
#if HAVE_AFECONET
if (ectype == NULL)
ectype = get_afntype(AF_ECONET);
if (ectype != NULL) {
if (ptr->has_econet)
printf(_(" econet addr:%s\n"),
ectype->sprint(&ptr->ecaddr, 1));
}
#endif
printf(" ");
/* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
if (ptr->flags == 0)
printf(_("[NO FLAGS] "));
if (ptr->flags & IFF_UP)
printf(_("UP "));
if (ptr->flags & IFF_BROADCAST)
printf(_("BROADCAST "));
if (ptr->flags & IFF_DEBUG)
printf(_("DEBUG "));
if (ptr->flags & IFF_LOOPBACK)
printf(_("LOOPBACK "));
if (ptr->flags & IFF_POINTOPOINT)
printf(_("POINTOPOINT "));
if (ptr->flags & IFF_NOTRAILERS)
printf(_("NOTRAILERS "));
if (ptr->flags & IFF_RUNNING)
printf(_("RUNNING "));
if (ptr->flags & IFF_NOARP)
printf(_("NOARP "));
if (ptr->flags & IFF_PROMISC)
printf(_("PROMISC "));
if (ptr->flags & IFF_ALLMULTI)
printf(_("ALLMULTI "));
if (ptr->flags & IFF_SLAVE)
printf(_("SLAVE "));
if (ptr->flags & IFF_MASTER)
printf(_("MASTER "));
if (ptr->flags & IFF_MULTICAST)
printf(_("MULTICAST "));
#ifdef HAVE_DYNAMIC
if (ptr->flags & IFF_DYNAMIC)
printf(_("DYNAMIC "));
#endif
/* DONT FORGET TO ADD THE FLAGS IN ife_print_short */
printf(_(" MTU:%d Metric:%d"), ptr->mtu, ptr->metric ? ptr->metric : 1);
#ifdef SIOCSKEEPALIVE
if (ptr->outfill || ptr->keepalive)
printf(_(" Outfill:%d Keepalive:%d"), ptr->outfill, ptr->keepalive);
#endif
printf("\n");
/* If needed, display the interface statistics. */
if (ptr->statistics_valid) {
/* XXX: statistics are currently only printed for the primary address,
* not for the aliases, although strictly speaking they're shared
* by all addresses.
*/
printf(" ");
printf(_
("RX packets:%Lu errors:%lu dropped:%lu overruns:%lu frame:%lu\n"),
ptr->stats.rx_packets, ptr->stats.rx_errors,
ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
ptr->stats.rx_frame_errors);
if (can_compress)
printf(_(" compressed:%lu\n"),
ptr->stats.rx_compressed);
printf(" ");
printf(_
("TX packets:%Lu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n"),
ptr->stats.tx_packets, ptr->stats.tx_errors,
ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
ptr->stats.tx_carrier_errors);
printf(_(" collisions:%lu "), ptr->stats.collisions);
if (can_compress)
printf(_("compressed:%lu "), ptr->stats.tx_compressed);
if (ptr->tx_queue_len != -1)
printf(_("txqueuelen:%d "), ptr->tx_queue_len);
printf("\n R");
print_bytes_scaled(ptr->stats.rx_bytes, " T");
print_bytes_scaled(ptr->stats.tx_bytes, "\n");
}
if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma ||
ptr->map.base_addr)) {
printf(" ");
if (ptr->map.irq)
printf(_("Interrupt:%d "), ptr->map.irq);
if (ptr->map.base_addr >= 0x100) /* Only print devices using it for
I/O maps */
printf(_("Base address:0x%lx "),
(unsigned long) ptr->map.base_addr);
if (ptr->map.mem_start) {
printf(_("Memory:%lx-%lx "), ptr->map.mem_start,
ptr->map.mem_end);
}
if (ptr->map.dma)
printf(_("DMA chan:%x "), ptr->map.dma);
printf("\n");
}
printf("\n");
}
static int do_if_print(struct interface *ife, void *cookie)
{
int *opt_a = (int *) cookie;
int res;
res = do_if_fetch(ife);
if (res >= 0) {
if ((ife->flags & IFF_UP) || *opt_a)
ife_print(ife);
}
return res;
}
static struct interface *lookup_interface(char *name)
{
struct interface *ife = NULL;
if (if_readlist_proc(name) < 0)
return NULL;
ife = add_interface(name);
return ife;
}
/* for ipv4 add/del modes */
static int if_print(char *ifname)
{
int res;
if (!ifname) {
res = for_all_interfaces(do_if_print, &interface_opt_a);
} else {
struct interface *ife;
ife = lookup_interface(ifname);
res = do_if_fetch(ife);
if (res >= 0)
ife_print(ife);
}
return res;
}
int display_interfaces(char *ifname)
{
int status;
/* Create a channel to the NET kernel. */
if ((skfd = sockets_open(0)) < 0) {
bb_perror_msg_and_die("socket");
}
/* Do we have to show the current setup? */
status = if_print(ifname);
close(skfd);
exit(status < 0);
}
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